I was riding along the Eastern Freeway tonight and as I approached the Doncaster Road onramp there were heaps of cars merging into the freeway. I was comfortably riding on the very right of 4 lanes when I spotted one of the cars that had merged acting a little impatient in trying to get around the cars in front, so I kept a close eye on it. She merged into the second lane, then the third, and it looked like she was going to merge into my lane in one go but for some reason she stopped but was still tailgating the car in front. I guessed she might have seen me so I continued to overtake going about 15km/h faster than she was going. Then just as I was about 5 meters behind her she put on her indicator and started to pull out in front of me. I slammed on my breaks so that I wouldn't crash up the back of her, then just as suddenly as she pulled out, she violently pulled back into her original lane. I had a bit of a chuckle to myself thinking "that could have been nasty" then tried to overtake again. As I past her window, she looked at me with a face that was between apologetic and scared that she could have easily killed me and she looked like she was a little shaken. I couldn't help but laugh to myself and gave her a big thumbs up for seeing me eventually and getting out of the way. I figure that I occasionally have done similar things and I feel pretty bad about after, and have a tendancy to dwell on what I've done making me prone to doing more dumb things. Now going by other posts I've read here, it seems that most people would get angry about that. Would you get angry, and am I too kind?